As we make our way through the world, countless sounds, smells, and images can tap into memories we created earlier in life. These memories may be full-blown recollections of a specific event, or they may be fragments—a feeling, a sense of déjà vu, an impression.

Smell a well-crafted perfume. A good perfume has a plot. Perfumes are made up of three types of notes: top, heart, and base notes. Watch how the scent unfolds over time. Try to record the effect of those changing scents on your emotional state, either as notes or a drawing.